diff --git a/.gitignore b/.gitignore
index 87af790..d14d7b0 100644
--- a/.gitignore
+++ b/.gitignore
@@ -20,3 +20,4 @@
 /chrono-0.4.25.crate
 /chrono-0.4.26.crate
 /chrono-0.4.27.crate
+/chrono-0.4.31.crate
diff --git a/chrono-fix-metadata-auto.diff b/chrono-fix-metadata-auto.diff
index 57a2f50..ebfa0c5 100644
--- a/chrono-fix-metadata-auto.diff
+++ b/chrono-fix-metadata-auto.diff
@@ -1,6 +1,6 @@
---- chrono-0.4.27/Cargo.toml	1970-01-01T00:00:01+00:00
-+++ chrono-0.4.27/Cargo.toml	2023-08-29T21:05:55.635779+00:00
-@@ -125,34 +125,11 @@
+--- chrono-0.4.31/Cargo.toml	1970-01-01T00:00:01+00:00
++++ chrono-0.4.31/Cargo.toml	2023-09-19T18:29:35.649694+00:00
+@@ -100,34 +100,11 @@
      "alloc",
  ]
  wasmbind = [
diff --git a/chrono-fix-metadata.diff b/chrono-fix-metadata.diff
index f1077a9..5a2b1cd 100644
--- a/chrono-fix-metadata.diff
+++ b/chrono-fix-metadata.diff
@@ -1,38 +1,10 @@
---- chrono-0.4.27/Cargo.toml	1970-01-01T00:00:01+00:00
-+++ chrono-0.4.27/Cargo.toml	2023-08-29T21:07:07.280031+00:00
-@@ -41,26 +41,9 @@
- [lib]
- name = "chrono"
- 
--[[bench]]
--name = "chrono"
--harness = false
--required-features = ["__internal_bench"]
--
--[[bench]]
--name = "serde"
--harness = false
--required-features = [
--    "__internal_bench",
--    "serde",
--]
--
- [dependencies.arbitrary]
- version = "1.0.0"
- features = ["derive"]
--optional = true
--
--[dependencies.criterion]
--version = "0.4.0"
- optional = true
- 
- [dependencies.num-traits]
-@@ -102,20 +85,15 @@
+--- chrono-0.4.31/Cargo.toml	1970-01-01T00:00:01+00:00
++++ chrono-0.4.31/Cargo.toml	2023-09-19T18:30:04.789787+00:00
+@@ -78,19 +78,15 @@
  version = "1"
  
  [features]
--__doctest = []
--__internal_bench = ["criterion"]
+-__internal_bench = []
  alloc = []
  clock = [
      "std",
@@ -47,8 +19,8 @@
 -    "wasmbind",
  ]
  libc = []
- oldtime = ["time"]
-@@ -124,9 +102,6 @@
+ oldtime = []
+@@ -99,9 +95,6 @@
      "pure-rust-locales",
      "alloc",
  ]
diff --git a/rust-chrono.spec b/rust-chrono.spec
index db4c840..f771d6c 100644
--- a/rust-chrono.spec
+++ b/rust-chrono.spec
@@ -5,7 +5,7 @@
 %global crate chrono
 
 Name:           rust-chrono
-Version:        0.4.27
+Version:        0.4.31
 Release:        %autorelease
 Summary:        Date and time library for Rust
 
@@ -185,18 +185,6 @@ use the "std" feature of the "%{crate}" crate.
 %files       -n %{name}+std-devel
 %ghost %{crate_instdir}/Cargo.toml
 
-%package     -n %{name}+time-devel
-Summary:        %{summary}
-BuildArch:      noarch
-
-%description -n %{name}+time-devel %{_description}
-
-This package contains library source intended for building other packages which
-use the "time" feature of the "%{crate}" crate.
-
-%files       -n %{name}+time-devel
-%ghost %{crate_instdir}/Cargo.toml
-
 %package     -n %{name}+unstable-locales-devel
 Summary:        %{summary}
 BuildArch:      noarch
@@ -224,9 +212,7 @@ use the "unstable-locales" feature of the "%{crate}" crate.
 
 %if %{with check}
 %check
-# * skip a test that hard-codes 64-bit arch-specific type sizes:
-#   https://github.com/chronotope/chrono/issues/1234
-%cargo_test -a -- -- --skip format::strftime::tests::test_type_sizes
+%cargo_test -a
 %endif
 
 %changelog
diff --git a/sources b/sources
index 1a5dd40..bc4bd74 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (chrono-0.4.27.crate) = 19c86589c11905ca16d68e59b500717329d08a9a431bbb51eabc2e1b15d1ab8902188e05337b0ec6fccc0c268a073c4e280dbd6605e80d4d4fcb17a4fdc5d9f0
+SHA512 (chrono-0.4.31.crate) = 23276daa2c1bc3b7b2327dc84200fb40cc995a8b599d1a537e92e08138ab8a0d1548a510a8155dcdda18820120d7204e89a4686c866fc3a8d2460cdb30ac6089